<html>
    <head>
        <title>inner</title>
    </head>
    <body>
        <div class="row-fluid">
            <div class="span6 well">
                <h3 id="inner_h3">inner</h3>
                <iframe id="f2" src="inner_sub.html" width="700" height="400">
            </div>
        </div>
    </body>
</html>